Treesearch

Incorporating a citizen science approach into biological invasion management strategies can enhance biosecurity. Many citizen science projects exist to strengthen the management of forest pest and pathogen invasions within both pre- and post-border scenarios. Besides the value of citizen science initiatives for early detection and monitoring, they also contribute widely to raising awareness, informing decisions about eradication and containment efforts to minimize pest and pathogen spread, and even finding resistant plant material for restoration of landscapes degraded by disease. Overall,...

The Internet is composed of >50 billion Web pages and grows larger every day. As the number of links and specialty subject areas increases, it becomes ever more difficult to find pertinent information. For some subject areas, special purpose data crawlers continually search the Internet for specific information; examples include real estate, air travel, auto sales, and others. The use of such special purpose data crawlers (i.e., targeted crawlers and knowledge databases), also allows the collection and analysis of agricultural and forestry data. Such single-purpose crawlers can search for...

Sources of neurotoxic mercury in forests are dominated by atmospheric gaseous elemental mercury (GEM) deposition, but a dearth of direct GEM exchange measurements causes major uncertainties about processes that determine GEM sinks. Here we present three years of forest-level GEM deposition measurements in a coniferous forest and a deciduous forest in northeastern USA, along with flux partitioning into canopy and forest floor contributions. Annual GEM deposition is 13.4 ± 0.80 μgm−2 (coniferous forest) and 25.1 ± 2.4 μgm−2 (deciduous forest) dominating mercury inputs (62 and 76% of total...

Atmospheric nitrogen (N) and sulfur (S) deposition can significantly affect forest biodiversity and production by altering the growth and survival of trees. Three decades of air quality regulations in the United States have led to large reductions in oxides of N (44–81%) and S (50–99%) emissions and associated deposition. Here we evaluated the magnitude and extent of effects over 20 years from atmospheric N and S deposition on the growth and survival of 94 tree species—representing 96.4 billion trees and an average of 88% of forest basal area across the contiguous United States (CONUS)....

Great Lakes coastlines are mosaics of wetland, stream, and lake habitats, characterized by a high degree of spatial heterogeneity that may facilitate the co-occurrence of seemingly incompatible biogeochemical processes due to variation in environmental factors that favor each process. We measured nutrient limitation and rates of N2 fixation and denitrification along transects in 5 wetland–stream–lake ecotones with different nutrient loading in Lakes Superior and Huron. We hypothesized that rates of both processes would be related to nutrient limitation status, habitat type, and environmenta...

Since early 2021 in the United States, climate smart forestry (CSF) has become a popular term and a growing field [1], but few peer-reviewed articles have recognized or discussed CSF nuances. Broadly, CSF is a strategy to combat climate change effects with ongoing and innovative forestry practices. Some, like Shephard et al [1], recognize CSF as forest management that accomplishes the following objectives: (1) greenhouse gas reduction and removal, i.e. climate change mitigation; (2) enhanced forest resilience, i.e. climate change adaptation; and (3) sustainable forest production and...

Climate-Smart Forestry (CSF) is an approach to forest management that supports traditional practices to enhance forest growth, such as planting, thinning, and harvesting, along with modern objectives for carbon storage and ecosystem resilience. CSF is characterized by three main objectives (figure 1): (1) forest adaptation and resilience, (2) increased forest mitigation potential, and (3) sustainably ensured production and income

Wood has likely been used to build human structures throughout the existence of mankind. It is a renewable resource that is visually appealing. Over the past 60 years, foresters have substantially increased yields of southern yellow pines, providing an ample supply for the construction of nonresidential wood buildings. However, the inability to obtain extended-length pieces of wood that meet building codes has often limited the ability to use wood for the framing and structure of taller buildings. There are other concerns about using wood in the construction of nonresidential buildings....

While recent studies explore the negative impacts of light pollution on arthropods, few studies investigated community-level responses to artificial light. Using an array of landscaping lights and pitfall traps, we track community composition over 15 consecutive days and nights, including a five-night pre-light period, a five-night during-light period, and a five-night post-light period. Our results highlight a trophic-level response to artificial nighttime lighting with shifts in the presence and abundance of predators, scavengers, parasites, and herbivores. We show that associated...

Shifts in plant functional groups associated with climate change have the potential to influence peatland carbon storage by altering the amount and composition of organic matter available to aquatic microbial biofilms. The goal of this study was to evaluate the potential for plant subsidies to regulate ecosystem carbon flux (CO2) by governing the relative proportion of primary producers (microalgae) and heterotrophic decomposers (heterotrophic bacteria) during aquatic biofilm development in an Alaskan fen. We evaluated biofilm composition and CO2 flux inside mesocosms with and without...